Classifier Instance:

Anchor text: arcade board
Target Entity: Arcade_system_board
Preceding Context: Because microcomputers in Japan were not powerful enough at the time to perform the complex tasks involved in designing and programming Space Invaders, Nishikado had to design his own custom hardware and development tools for the game. He created the
Succeeding Context: using new microprocessors from the United States. The game uses an Intel 8080 central processing unit, and features raster graphics on a CRT monitor and monaural sound hosted by a combination of analogue circuitry and a Texas Instruments SN76477 sound chip. Despite the specially developed hardware, Nishikado was unable to program the game as he wanted—the Control Program board was not powerful enough to display the graphics in color or move the enemies faster—and he considered the development of the hardware the most difficult part of the whole process. While programming the game, Nishikado discovered that the processor was able to render the alien graphics faster the fewer were on screen. Rather than design the game to compensate for the speed increase, he decided to keep it as a challenging gameplay mechanic.
Paragraph Title: Hardware
Source Page: Space Invaders

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